The General Dental Council (GDC) requires dental practitioners to provide good-quality care based on current evidence and authoritative guidance. However, this leaves the dental practitioner in a sort of limbo as good quality is an ill-defined term allowing its precise meaning to be open to interpretation. This article sets out to demonstrate that the practice of dentistry is very much more of an art than a science and, as such, relies on individual skill and judgement. It will also show that the 'value' of current evidence as determined by published papers and authoritative guidance is questionable and should not be regarded by dental practitioners as the 'rule'. The interaction between a dentist and a patient essentially consists of clinical decision-making and the implementation of that decision and, therefore, it is essential to understand the nature of decision-making and the context in which implementation takes place. Practitioners should exercise their clinical judgement, putting the interests of the patient first and not feel constrained by the threat of sanctions from the GDC or other regulatory bodies.